In article <2002Dec13.230712.25480 at jarvis.cs.toronto.edu>, Beverly
Erlebacher <bae at cs.toronto.edu> writes
>>I've read that before the ice ages started a couple hundred million years ago,
>the world had a climate that varied much less with latitude. Not only was
>Antartica heavily forested with Nothofagus spp., but the entire north circum-
>polar area, which is now mostly tundra and scrubby boreal forest, was covered
>with sequoia forest. It's kind of mind-boggling to imagine such a forest, eh?
>
The base of the Pleistocene is about 2m years ago, tho' the climatic
cycles started earlier. Antarctica has been glaciated for longer, but
more of the order of 20m years than 200m. OTOH, I wouldn't be too
surprised to find relatively recent records of forests in the Antarctic
Peninsula.
--
Stewart Robert Hinsley